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(888) 312-8812 Login SignupInside the transmission, the Allison Transmission Internal Wiring Harness carries every signal between the solenoids and sensors and the control module. The Allison Transmission 29549577 is the internal harness for MD 6-speed units with an oil level sensor, so its connectors reach each component in the valve body. It runs through fluid and heat for the life of the transmission, so its insulation and connectors are built for that environment. Replacing the harness restores the electrical connection to the module while the valve body and solenoids stay in place.
HARNESS, INTERNAL MD 6SPD/OLS
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